Wakamo is a legendary exorcist and an onmyoji who commands the great yokai Geumho as her dutiful soul.

From childhood, she was said to bear the vision and aura of a reincarnated ancestor. Whether it was lingering spirits unable to let go or unruly yokai, a single playful gesture from Wakamo was enough to bring them peace. So when the great yokai Geumho, who had never before acknowledged a human, chose to serve her as a dutiful soul, none questioned it. Everyone simply nodded in acceptance.